A volunteer bus driver sprays disinfectant on a vehicle before picking up medical workers, in Yangzhou, Jiangsu province, on Aug 12, 2021. [Photo by Meng Delong/for chinadaily.com.cn]

A volunteer bus driver wipes the bus seats before picking up medical workers, in Yangzhou, Jiangsu province, on Aug 12, 2021. [Photo by Meng Delong/for chinadaily.com.cn]

A volunteer bus driver sprays disinfectant on a vehicle before picking up medical workers, in Yangzhou, Jiangsu province, on Aug 12, 2021. [Photo by Meng Delong/for chinadaily.com.cn]

A volunteer bus driver is driving medics to work, in Yangzhou, Jiangsu province, on Aug 12, 2021. [Photo by Meng Delong/for chinadaily.com.cn]

Medical workers wave goodbye to a volunteer bus driver after he drives them to work, in Yangzhou, Jiangsu province, on Aug 12, 2021. [Photo by Meng Delong/for chinadaily.com.cn]